I am trying to run reporting from Zuora, but there are many accounts that were not properly maintained, and therefore have months of posted invoices (without payment) to subscribers who shouldn't have been invoiced altogether. I want to remove those invoices retroactively, and rid of all the recurring revenue that shouldn't have been there. This way I can have "clean data", and report from Zuora's insights page.

Is there any way to do that? I view my options as-

Delete the customer accounts from Zuora.

Problem is that I don't believe this does anything retroactively, and will only help me going forward. Is this assumption correct?